title: The origin of magnetism in transition metal-doped ZrO2 thin films: experiment and theory.
abstract: We have investigated the magnetic properties of Fe/Co/Ni-doped ZrO2 laser ablated thin films in comparison with the known results of Mn-doped ZrO2, which is thought to be a promising material for spintronics applications. It is found that doping with a transition metal can induce room temperature ferromagnetism in 'fake' diamond. Theoretical analysis based on density functional theory confirms the experimental measurements, by revealing that the magnetic moments of Mn- and Ni-doped ZrO2 thin films are much larger than that of Fe- or Co-doped ZrO2 thin films. Most importantly, our calculations confirm that Mn- and Ni-doped ZrO2 show a ferromagnetic ground state in comparison to Co- and Fe-doped ZrO2, which favor an antiferromagnetic ground state.
authors.affiliation: Department of Physics and Astronomy, Seoul National University, Gwanak-gu, Seoul 151-747, Korea.
authors.forename: Nguyen Hoa
authors.initials: NH
authors.lastname: Hong
authors.forename: Mohammed Benali
authors.initials: MB
authors.lastname: Kanoun
authors.forename: Souraya
authors.initials: S
authors.lastname: Goumri-Said
authors.forename: Jae-Hee
authors.initials: JH
authors.lastname: Song
authors.forename: Ekaterina
authors.initials: E
authors.lastname: Chikoidze
authors.forename: Yves
authors.initials: Y
authors.lastname: Dumont
authors.forename: Antoine
authors.initials: A
authors.lastname: Ruyter
authors.forename: Makio
authors.initials: M
authors.lastname: Kurisu